Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC2011SAVANA SPECIAL 4.8 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 4 (ENGINE CONTROLS AND FUEL - 6.6L (LGH) - DTC P0016 THROUGH DTC P11DC)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P111DTESTINGCIRCUIT/SYSTEM VERIFICATION
2011 GMC Savana Special 4.8 A
Circuit/System Verification
2011 GMC Savana Special 4.8 ASECTION Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
NOTE:
- Perform Step 1 of this verification procedure only if the ignition has been OFF for 8 hours or more.
- The vehicle sitting in direct sun light or having the block heater ON will skew the results.
- Ignition ON, observe the following scan tool parameters. The readings should be within 20°C (36°F) of each other.
- Fuel Rail Temperature Sensor
- IAT Sensor 1 Sensor
- Engine idling, verify the appropriate scan tool parameters' readings are within the specified range. The readings depend on the current ambient temperature and the vehicle operating conditions.
- -39 to +148°C (-38 to +298°F); Fuel Rail Temperature Sensor
- -39 to +148°C (-38 to +298°F); IAT Sensor 1 Sensor
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.